1:12 mW/cm2 for cesium atoms, ¢ =! ¡ !0 is the frequency detuning), one can know that the observed photon count rate is governed by the laser beam in-tensity and the frequency detuning. To enhance the scattering rate of trapped atoms, we decrease the cool-ing laser red detuning of the MOT to one natural
laser-cooled Cesium atoms is used, where the nanofiber is realized as the waist of a tapered optical fiber. Despite the atoms being trapped close to the nanofiber surface, the system offers a long ground state coherence time. This, in combination with the good coupling of the trapped
Single cesium atoms are cooled and trapped inside a small optical cavity by way of a novel far-off-resonance dipole-force trap, with observed lifetimes of [Formula presented]. Trapped atoms are observed continuously via transmission of a strongly coupled probe beam, with individual events lasting [Formula presented].
In this experiment, 1.8x10'neutral cesium atoms were optically captured directly from a low-pressure vapor in a small glass cell. We then cooled the & 1-mm' cloud of trapped atoms and loaded it into a low-field magnetic trap in the same cell. The magnetically trapped atoms had an eAective temperature as low as 1.1+ 0.2 pK, which is the lowest ki-
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We experimentally study the ground state coherence properties of cesium atoms in a nanofiber-based two-color dipole trap, localized ∼200nanometer away from the fiber surface. Using microwave radiation to coherently drive the clock transition, we record Ramsey fringes as well as spin echo signals and infer a reversible dephasing time of T∗2=0.6millisecond and an irreversible ...
to increase the number of trapped atoms. The trapping and molasses beams are provided by a stabilized Ti:sapphire la-ser and are red detuned by about 12 MHz from the resonance frequency of the cesium cycling transition 6S1/2, F54 26P3/2, F855atl5852 nm, as indicated in Fig. 1~a!, which shows the hyperfine levels of the cesiumD2 line. The
By fabricating the PCW with a band edge near the D$_1$ transition of atomic cesium, strong interaction is achieved between trapped atoms and guided-mode photons.
Next, we demonstrate our method by measuring the cesium 6S–7S TPS with optically trapped single cesium atoms. The laser wavelength to drive the 6S–7S two-photon transition is 1079.01 nm. In our experiment, the atom is first loaded from a magneto-optical trap (MOT) into a micro-sized dipole trap formed by a strongly focused 1079 nm laser ...
The researchers trapped cesium atoms and then sent through the fiber two probe beams, whose frequencies were tuned slightly to the red and the blue of a particular cesium transition. Interactions with the atoms cause the red-shifted probe to travel more slowly than the blue-shifted one, and this difference signal reveals the number of atoms.
In this experiment, 1.8x10'neutral cesium atoms were optically captured directly from a low-pressure vapor in a small glass cell. We then cooled the & 1-mm' cloud of trapped atoms and loaded it into a low-field magnetic trap in the same cell. The magnetically trapped atoms had an eAective temperature as low as 1.1+ 0.2 pK, which is the lowest ki-
： The following sections are included:The Simple One-Atom MaserThe Two-Photon MaserTrapping Single Atoms in a MOTCoupling Single Atoms to a High-Finesse Optical CavityCoupling of Single Slow Cesium Atoms to a High-Finesse Optical CavityCooling an Atom Strongly Coupled to a High-QStanding Wave CavityReal-Time CQED and Atom Channeling with Single AtomsFormation of Giant Quasi …
Optical dipole trap (ODT) is becoming an important tool of manipulating neutral atoms. In this paper ODT is realized with a far-off resonant laser beam strongly focused in the magneto-optical trap (MOT) of cesium atoms. The light shift is measured by simply monitoring the fluorescence of the atoms in the magneto-optical trap and the optical dipole trap simultaneously. The advantages of our ...
Single cesium atoms are cooled and trapped inside a small optical cavity by way of a novel far-off-resonance dipole-force trap, with observed lifetimes of 2 – 3 s.Trapped atoms are observed continuously via transmission of a strongly coupled probe beam, with individual events lasting ≃ 1 s.The loss of successive atoms from the trap N ≥ 3 → 2 → 1 → 0 is thereby monitored in real time.
Sub-Wavelength Resonance Imaging and Addressing of Cesium Atoms Trapped in an Optical Lattice . By and Jae Hoon Lee and Jae Hoon Lee. Abstract. We demonstrate a resonance imaging protocol for optical lattices that enables robust preparation and single qubit addressing of atoms with sub-wavelength resolution in 1D. A 3D optical lattice ...
The decelerated atoms were trapped by six mutually orthogonal laser beams in a magneto-optical trap configuration. The atoms could also be trapped directly from ambient cesium gas in a glass cell without using the deceleration laser beam. The characteristics of …
PDF | We report the measurement of collision rate coefficient for collisions between ultracold Cs atoms and low-energy Cs+ ions. The experiments are... | Find, read and cite all the research you ...
We present the first simultaneous trapping of two different ultracold atomic species in a conservative trap. Lithium and cesium atoms are stored in an optical dipole trap formed by the focus of a CO2 laser. Techniques for loading both species of atoms are discussed and observations of elastic and inelastic collisions between the two species are presented. A model for sympathetic cooling of two ...
OSTI.GOV Journal Article: Enhancement in the number of trapped atoms in a cesium magneto-optical trap by a near-resonant control laser. Enhancement in the number of trapped atoms in a cesium magneto-optical trap by a near-resonant control laser. Full Record; Other Related Research;
DOI: 10.1103/PHYSREVLETT.81.5768 Corpus ID: 6049069. Degenerate Raman Sideband Cooling of Trapped Cesium Atoms at Very High Atomic Densities @article{Vuleti1998DegenerateRS, title={Degenerate Raman Sideband Cooling of Trapped Cesium Atoms at Very High Atomic Densities}, author={V. Vuleti{'c} and C. Chin and A. Kerman and S. Chu}, journal={Physical Review Letters}, …
Title: Coherence properties of nanofiber-trapped cesium atoms Authors: D. Reitz, C. Sayrin, R. Mitsch, P. Schneeweiss, A. Rauschenbeutel (Submitted on 20 Feb 2013 ( v1 ), last revised 28 Mar 2013 (this version, v2))
Strong evaporative cooling of a trapped cesium gas. Optics Express, 1998. J. Dalibard. Download PDF. Download Full PDF Package. This paper. A short summary of this paper. 37 Full PDFs related to this paper. Read Paper. Strong evaporative cooling of a trapped cesium gas. Download. Related Papers.
Cesium atoms in a vapor cell have been trapped and cooled by using light from laser diodes. The 6S F = 4, m = 0 6S F = 3, m = 0 hyperfine clock transition was excited as these atoms then fell 2.5 cm in darkness. We observed a linewidth of 8 Hz with good signal-to-noise ratio.
We created a cesium magneto-optical trap. The white dot in the center of the glass cell is a cloud of 10 5 cesium atoms at a temperature of 200µK. The cesium atoms are trapped by 6 laser beams and a magnetic field gradient inside an ultrahigh vacuum chamber glass cell (10-10 Torr). The magnetic field gradient is made by the orange coils in the ...
For illustrative purposes, the atoms in the optical lattice in front of the objective lens are shown not to scale. (b) Fluorescence image acquired with our high NA objective lens, showing two cesium atoms trapped in adjacent lattice sites of a two-dimensional optical lattice.
CiteSeerX - Document Details (Isaac Councill, Lee Giles, Pradeep Teregowda): Abstract Optical dipole trap (ODT) is becoming an important tool of manipulating neu-tral atoms. In this paper ODT is realized with a far-off resonant laser beam strongly fo-cused in the magneto-optical trap (MOT) of cesium atoms. The light shift is measured by simply monitoring the fluorescence of the atoms in the ...
cesium atoms in a magneto-optic trap (MOT) [14, 15]. The atoms are trapped in a stainless steel UHV chamber, in contrast to the earlier experiments in our group that used a quartz interaction chamber. All opti-cal viewports are anti-reflection coated on both sides …
Experimental setup. Arrays of cesium atoms are trapped in the evanescent field of a nanofiber. The lattice is realized by a pair of close-to-resonance red-detuned counterpropagating beams. An additional pair of blue-detuned beams with slightly different wavelengths gives a …
The motion of individual cesium atoms trapped inside an optical resonator is revealed with the atom-cavity microscope (ACM). A single atom moving within the resonator generates large variations in the transmission of a weak probe laser, which are recorded in real time. An inversion algorithm then al …
Sub-wavelength resonance imaging and addressing of cesium atoms trapped in an optical lattice Lee, Jae Hoon; Abstract. We demonstrate a resonance imaging protocol for optical lattices that enables robust preparation and single qubit addressing of atoms with sub-wavelength resolution in 1D. A 3D optical lattice consisting of three sets of ...
